A watershed is the land that water flows across, under, or through on its way to a stream, river, lake, wetland or other body of water.

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Presentation on theme: "A watershed is the land that water flows across, under, or through on its way to a stream, river, lake, wetland or other body of water."— Presentation transcript:

1 A watershed is the land that water flows across, under, or through on its way to a stream, river, lake, wetland or other body of water

2 is surrounded by a divide, or natural,PARTS OF A WATERSHEDTributarySmaller rivers orstreams that flowinto a larger riveror stream.Divide/RidgelineHigher groundseparating twoadjacent streamsor watersheds.This larger bodyof water maybe a bay.River drainsInto a largerbodyof waterThe watershedis surrounded by a divide, or natural,elevated boundary

3 This is the Betsiboka River,PARTS OF A WATERSHEDFlood PlainFlat, border areas oneach side of a river.Which allows water tospill out / overflow attimes of high flow.The sediment iscarried downstream & settlesout or is depositedinto thebottom of theslower movingsections of river.SedimentMaterials such asrock fragments &grains that havebeen transportedby wind, water, orglaciers.This is the Betsiboka River,Madagascar. Takenby the Space Shuttleshowing the impactof logging

4 Tributaries that flow into the Chesapeake BayOf the 50 major tributaries that feed to the Chesapeake Bay just three deliver almost all the fresh water for the bay.1. Susquehanna River ~50%2. Potomac River ~ 20%3. James River ~ 15%*See if you can find them on the next slide!

10 The Largest Watershed In VirginiaChesapeake Bay Watershed covers 60% of Virginia.That equals square miles and covers 6 states!!

11 Watersheds can be Broken Down into Smaller Watersheds…Watersheds can be Broken Down into Smaller Watersheds….. Virginia’s Top 5 smaller watershed’s - James (River) -York (River) -Rappahannock (River) - Potomac/Shenandoah (River) - Atlantic Coastal See if you can locate them in next slide!!!

40 Watershed An area of land in which precipitation collects andthen flowsand drainsinto onebody of water.

41 is surrounded by a divide, or natural,PARTS OF A WATERSHED3. TributarySmaller rivers orstreams that flowinto a larger riveror stream.2. DivideHigher groundseparating twoadjacent streamsor watersheds.This larger bodyof water maybe a bay.River drainsInto a largerbodyof waterThe watershedis surrounded by a divide, or natural,elevated boundary

42 4. Bay A body of water partly enclosed by land, but having a wide outlet to the sea.